Duchy of Kashubia

Duchy of Cornwall

Duchy of Lancaster

Duchy of Parma and Piacenza

Duchy of Saxony

Duchy of Guelders

Duchy of Luxembourg

Duchy of Lorraine

Duchy of Warsaw

Duchy of Athens

Duchy of Silesia

Duchy of Limburg

Duchy of Mantua

Chancellor of the Duchy of Lancaster

Duchy of Münsterberg

Duchy of Modena and Reggio

Duchy of Teschen

Duchy of Bernstadt

Grand Duchy of Posen

Waitrose Duchy Organic

Duchy of Burgundy

Duchies of Silesia

Duchy of Montferrat

Duchy of Głogów

Duchy of Nassau

Duchy of Westphalia

Duchy of Spoleto

Duchy of Livonia

Duchy of Jülich

Duchy of Brunswick

Duchy of Masovia

Duchy of Lithuania

Duchy of Pomerania-Stolp

Duchy of Troppau

Duchy of Warsaw (Middle Ages)

Duchy of Carinthia

Duchies in England

Duchy of Brabant

United Baltic Duchy

Duchy of Benevento

Duchy of Löwenberg

Grand Duchy of Lithuania

Grand Duchy of Finland

Duchy of Racibórz

Duchy of Courland and Semigallia

Duchy of Styria

Duchy of Nivernais

Duchy of Neopatras

Duchy of Reggio

Duchy of Cleves

Duchy of Massa and Carrara

Grand Duchy of Würzburg

Duchy of the Archipelago

Duchy of Pomerania

Duchy of Siewierz

Duchy of Akhalkalaki

Grand Duchy of Hesse

Duchy of Oświęcim

Duchy of Naples

Duchy of Opole and Racibórz

Duchy of Łęczyca

Duchy of Syrmia

Duchy of Tskhumi

Grand Duchy of Mecklenburg-Strelitz

Duchy of Saint Sava

Duchy of Żagań

Duchy of Gascony

Duchy of Kldekari

Duchy of Limburg (1839–1867)

Grand Duchy of Kraków

Duchy of Głubczyce

Duchy of Friuli

Duchy of Tridentum

Duchy of the Pentapolis

Duchy of Orléans

Grand Duchy of Baden

Duchy of Pomerelia

Partitions of the Duchy of Pomerania

Duchy of Sorrento

Duchy of Friedland

Ernestine duchies

Grand Duchy of Oldenburg

Duchy of Kraków

Duchy of Carniola

Duchy of Amalfi

Duchy of Brittany

Duchy of Inowrocław

Grand Duchy of Tuscany

Duchy of Legnica

Duchy of Austria

Duchy of Krumlov

Subdivisions of the Duchy of Warsaw

Duchy of Franconia

Duchy of Tuscany

Duchy of Anhalt

Duchy of Oldenburg

Duchy of Croatia

Duchy Home Farm

Constitution of the Duchy of Warsaw

Duchy of Schleswig

Duchy of Durazzo

Grand Duchy of Frankfurt

Duchy of Samogitia

Duchy of Estonia

Army of the Duchy of Warsaw

Duchy of Pannonia

Grand Duchy of Mecklenburg-Schwerin

Duchy of Normandy

Flag of the Duchy of Teschen

Duchy of Nassau–United States relations

Duchy of Braganza

Duchy of Urbino

Duchy of Poznan

Attorney-General of the Duchy of Lancaster

Duchy of Parma–United States relations

Duchy of Württemberg

Grand Duchy of Hesse–United States relations

List of Pomeranian duchies and dukes

Duchy of Brunswick-Lüneburg–United States relations

Duchy of Prussia

Duchy of Persiceta

Duchy of Aquitaine

Duchy of Alsace

Grand Duchy of Oldenburg–United States relations

Grand Duchy of Tuscany–United States relations

List of chancellors of the Duchy of Lancaster

Grand Duchy (band)

Duchy of Ferrara

Duchy of Bohemia

Grand Duchy of Avram

Duchy of Swabia

Grand Duchy of Mecklenburg-Strelitz–United States relations

Duchy of Bielsko

Duchy of Merania

Duchy of Guastalla

Duchy of Tuscia

List of governors of the Duchy of Milan

Clerk of the Council of the Duchy of Lancaster

List of cities in the Grand Duchy of Lithuania

Duchy of Bavaria

Duchy of Płock

Duchy of Wiślica

Duchy of Czersk

Duchy of Lubusz

Duchy of Trakai

Duchy of Poznań

Duchy of Świecie

Duchy of Samokalako

Duchy of Lubiszewo

Grand Duchy of Mecklenburg-Schwerin–United States relations

Duchy of Gniezno

Duchy of Gdańsk

Duchy of Kuyavia

Duchy of Cornwall Act 1860

Duchy of Kalisz

Duchy of Magdeburg

Coat of arms of the Duchy of Czersk

Duchy of La Vallière

Duchy of Philippopolis

Duchy of Wieluń

Duchy of Sieradz

Pomerania-Stettin

The Glory of the Duchy of Carniola

Duchy of Salzburg

Duchy of Białogarda

Duchy of Perugia

Grand Duchy of Baden–United States relations

Duchy of Prudnik

Duchy of Gniewkowo

Duchy of Sandomierz

Duchy of Cantabria